Waterproof cloth (canvas) craftsmanship attention points

In the design of the dyeing formula, it is necessary to consider that after the fabric is waterproof and finished, the hue of the cloth surface is likely to change greatly, usually the hue will become darker; for this reason, in the process of color matching by technicians, the hue of the fabric after dyeing cannot be used as the standard. Otherwise, the hue will exceed the standard, which will affect the hue consistency of the fabric; for this reason, to design a suitable dye formula, a series of stakeout preparations must be made before the product is produced: that is, a small sample is placed in the laboratory, a medium sample is placed in a cart, and Large sample; and note: before stakeout, the locomotive must be kept clean, the equipment and machinery and electrical appliances must be in normal operation, and the personnel must be in place to ensure the high quality and efficiency of the stakeout from all aspects.